大单宽流量、低佛汝德数消力池优化设计研究  

Research on Optimization of Large Unit Width Flow and Low Froude Number Stilling Pool

作　　者：谢泽 辜晋德[1] 赵建钧[1] 王宇[1] XIE Ze;GU Jin-de;ZHAO Jian-jun;WANG Yu(Nanjing Hydraulic Research Institute,Nanjing 210029,Jiangsu Province,China)

机构地区：[1]南京水利科学研究院,江苏南京210029

出　　处：《中国农村水利水电》2024年第8期175-179,共5页China Rural Water and Hydropower

摘　　要：针对某水电站消力池原设计方案出现的大单宽流量、低佛汝德数水流消能问题,通过物理模型试验,对消力池的体型参数以及辅助消能工的布置形式进行优化,并对比分析各方案的水流流态和水力特性。试验结果表明:下挖式消力池与消能墩的联合消能方案(消力池下挖4.20 m并设置消能墩)可以有效改善消力池内水流流态,水位波动幅度下降,消力池出池流速明显减小,消能效果显著。Aiming at the energy dissipation problems of large unit width flow and low Froude number in the original design scheme of the stilling pool of a hydropower station,the body size parameters and the number and position of auxiliary energy dissipators were optimized through physical model test,and the flow pattern and the hydraulic characteristics of each scheme were compared and analyzed.The test results show that the combined energy dissipation scheme of excavated stilling pool and energy dissipation piers(digging 4.20 m down and setting the energy dissipation piers)can effectively stabilize the flow pattern,diminish the amplitude of water level fluctuations,significantly reduce the flow velocity out of the stilling pool,and achieve significant energy dissipation effects.

关 键 词：大单宽流量 低佛汝德数 底流消能 下挖式消力池 消能墩 

分 类 号：TV131.61[水利工程—水力学及河流动力学]